Fatigue Behavior of Dissimilar Al–Mg–Si/Al–Zn–Mg Aluminum Alloys Friction Stir Welding Joints

Yan, Zhongjie; Liu, Xuesong; Fang, Hongyuan

doi:10.1007/s40195-016-0510-2

Cited by 16 publications

(14 citation statements)

References 22 publications

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“…Furthermore, it can also be found that when the crack depth a/W = 0.2, the crack is nearly straight along the interface firstly [30] and then tends to deviate to the side of 52Mb with lower strength. The fracture surface is rough and scraggly, which implies that substantial energy has been consumed to separate the crack surface, the fracture mechanism is highly ductile fracture.…”

Section: Crack Growth Pathsmentioning

confidence: 93%

Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the Weakest Locations of Dissimilar Metal Welded Joint

Yang

2017

Acta Metall. Sin. (Engl. Lett.)

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In this work, a set of GTN (Gurson-Tvergaard-Needleman) parameters of the Alloy52M dissimilar metal welded joint (DMWJ) have been calibrated, and a micromechanical analysis of in-plane constraint effects on the local fracture behavior of two cracks, which located in the weakest regions of the DMWJ, has been investigated by the local approach based on the GTN damage model. The results show that the partition of the material and the variation of the q 2 parameter make the J-resistance curves obtained by numerical simulations close to the experimental values. The numerical J-resistance curves and crack growth paths are consistent with the experiment results, which show that the GTN damage model can incorporate the in-plane constraint effect. Furthermore, after the stress, strain and damage fields at the crack tip during the crack propagation process have been calculated, and the change of the J-resistance curves, crack growth paths and fracture mechanism with in-plane constraint have been analyzed.

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Section: Crack Growth Pathsmentioning

confidence: 93%

Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the Weakest Locations of Dissimilar Metal Welded Joint

Yang

2017

Acta Metall. Sin. (Engl. Lett.)

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“…Studying FSWed joints of sheets made of dissimilar Al-Mg-Si/Al-Zn-Mg alloys (Table 3), Yan et al [283] and [284]found that for the Al-Zn-Mg alloy positioned at the advancing side AS, the joints exhibited better fatigue properties caused by the bridging effect of the big secondary phase particles. For the Al-Zn-Mg alloy placed at the AS, there was limited movement of the Al-Mg-Si alloy material to the AS due to its easier flow.…”

Section: Positioning Of Alloymentioning

confidence: 99%

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

Derbiszewski,

Obraniak,

Rylski

et al. 2024

Preprint

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To fulfil a need of limitation automotive emissions the reduction of vehicle weight is widely recommended and achieved in many ways, both by the construction of individual elements of the vehicle, and by the selection of light materials including Al alloys. Connecting these elements with each other and with elements made of iron alloys can be realized, inter alia, by welding or stir welding. However, the quality of the welds obtained varies widely and depends on many design, operational and environmental factors. The present study focused on a review of various welding technics used to joint both similar and dissimilar Al alloys utilized in automotive industry, the effect of various process parameters on welds quality, and phenomena appeared in such welds..

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“…At the same time, another factor affecting the material mixing, material configuration in FSW of dissimilar aluminum alloy was investigated as well. In this regard, Yan et al [16] found that excellent material mixing and joint fatigue properties are produced when the Al-Zn-Mg alloy was placed on the advancing side (AS), and it became worse by the contrary material configuration. For a detailed review on FSW of dissimilar aluminum alloy joints [17], the development prospects for joining dissimilar aluminum joints are discussed.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Bonding Interface Characteristics and Mechanical Properties of Bobbin Tool Friction Stir Welded Dissimilar Aluminum Alloy Joints

Wen

Patel

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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This study focuses on the bonding interface characteristics and mechanical properties of the bobbin tool friction stir welded dissimilar AA6056 and AA2219 aluminum alloy joints using different welding speeds. Voids arise solely in the stir zone at the AA2219 side. A distinct boundary with limited material mixing develops at the middle section of the bonding interface, while excellent material mixing with an irregularly jagged pattern forms at the top and bottom sections of the bonding interface. Increasing the welding speed, the material mixing is rarely changed at the middle section in comparison with the bottom section. Furthermore, a small difference between Guinier-Preston dissolution and Q phase precipitation leads to rare change of hardness in the heat affected zone (HAZ) at the AA6056 side. The increased hardness of the HAZ at the AA2219 side is attributed to avoidance of the dissolution of θ″ phase precipitates. A maximum tensile strength of 181 MPa is obtained at 300 mm min −1 . Fractures occur at the AA6056 side near the top and bottom surfaces and at the bonding interface in the middle section of the joints. The regions close to the top and bottom surfaces of the joints show a better ductility.

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Fatigue Behavior of Dissimilar Al–Mg–Si/Al–Zn–Mg Aluminum Alloys Friction Stir Welding Joints

Cited by 16 publications

References 22 publications

Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the Weakest Locations of Dissimilar Metal Welded Joint

Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the Weakest Locations of Dissimilar Metal Welded Joint

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

Assessing the Bonding Interface Characteristics and Mechanical Properties of Bobbin Tool Friction Stir Welded Dissimilar Aluminum Alloy Joints

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